PRECISION MACHINE TOOLS Ver 1 Maintenance Manual502) Electrical box(a) Please well guard the relevant keys.(b) The machine has two security keys to prevent the electrical box from being opened arbitrarily.The functions are presented on the right figure.(c) Keep the user’s manual at an easily accessed location. If the manual word can’t read, please callthe agent and confirm the model as well as the model number of the machine.Main power switch:Before performing and maintenance,repair or for any emergency condition,turn of this switch.Locked electrical box:The box cannot be opened byunauthorized personnel.